THE INTERACTIONS OF SALICYLIC ACID AND PLANT HORMONS ON ROOT ELONGATION OF RADISH SEEDLINGS

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NOUJAVAN M.; POURAKBAR L.

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Journal: Journal of Applied Biology Year:2004 | Volume:17 | Issue:1 Page(s): 8-19

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Information Journal Paper

Title

THE INTERACTIONS OF SALICYLIC ACID AND PLANT HORMONS ON ROOT ELONGATION OF RADISH SEEDLINGS

Author(s)

NOUJAVAN M. | POURAKBAR L. | Issue Writer Certificate

Keywords

SAQ4

IAAQ4

GAQ4

ABAQ4

CYTOKININQ4

RADISH AND ROOT GROWTHQ4

Abstract

In this study, the effect of SAlicylic acid (SA) on seed germination and growth of radish seedlings (Raphanus SAtivus L.) and it's interaction with plant hormones were investigated. The results of experiments showed that SA at high concentrations inhibited seed germination and at 4 mM reduced it to zero. Meanwhile, with increasing the SA concentration, root length, α- amylase activity reduced but auxin oxidase activity increased. In order to investigate, the reasons of root length reduction, the interactions of SA with IAA, GA, ABA and CYTOKININ were studied. GA alone was not limiting to root groWth but showed synergism with SA and further reduced seedling root growth. IAA at 10-8, 10-7 and 10-6 mM concentrations promoted root growth and at 10-8 and 10-7 mM along with 0.5 and 1 mM SA increased root growth, but could not overcome to reducing effect of 2 mM SA. ABA alone was limiting to root growth and at 1 mM completely blocked seed germination. Interestingly, ABA at 10-6 and 10-4 mM showed antagonism with reducing effect of SA, and increased root growth. CYTOKININ alone at 10-6 and 10-4 mM increased root growth but at 1 mM decreased it drastically. CYTOKININ at 10-6 and 10-4 mM acted as antagonist with SA and increased root growth.

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APA: Copy

NOUJAVAN, M., & POURAKBAR, L.. (2004). THE INTERACTIONS OF SALICYLIC ACID AND PLANT HORMONS ON ROOT ELONGATION OF RADISH SEEDLINGS. JOURNAL OF APPLIED BIOLOGY (JOURNAL OF SCIENCE), 17(1), 8-19. SID. https://sid.ir/paper/22638/en

Vancouver: Copy

NOUJAVAN M., POURAKBAR L.. THE INTERACTIONS OF SALICYLIC ACID AND PLANT HORMONS ON ROOT ELONGATION OF RADISH SEEDLINGS. JOURNAL OF APPLIED BIOLOGY (JOURNAL OF SCIENCE)[Internet]. 2004;17(1):8-19. Available from: https://sid.ir/paper/22638/en

IEEE: Copy

M. NOUJAVAN, and L. POURAKBAR, “THE INTERACTIONS OF SALICYLIC ACID AND PLANT HORMONS ON ROOT ELONGATION OF RADISH SEEDLINGS,” JOURNAL OF APPLIED BIOLOGY (JOURNAL OF SCIENCE), vol. 17, no. 1, pp. 8–19, 2004, [Online]. Available: https://sid.ir/paper/22638/en

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